According to the errors above, the restore cannot be implemented because database is in OPEN mode ( if I don't understand wrong ). The problem is that if I set database in NOMOUNT or MOUNT mode then I cannot open the repository or profile in the SnapOracle application. How can I handle this problem ?

SMO : cannot restore/recover database from backup

I hade done it before I ran 'restore' and the result of restore process is failed. I also see that I cannot implement the offline backup of database. If the dabase is down then SMO application cannot connect to database . It requires that I have to close the SMO and restart .

SMO : cannot restore/recover database from backup

I found the reason why the problem occurs. I created a new user smo_oper with sysdba privilege but it seems it's not be working with the privilege he is granted .I connect to the database as smo_oper and it also doesn't work although he has 'sysdba' priv and database says that ORA-01045: user SMO_OPER lacks CREATE SESSION privilege; logon denied . It's strange but I'll fix it.